CVE-2021-23838
A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface.
Does this matter?
Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter accepts malicious client-side script without proper input sanitization. For example, a malicious user can leverage this vulnerability to steal cookies from a victim user and perform a session-hijacking attack, which may then lead to unauthorized access to the site.
- CVSS 3.1
- 4.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- flatcore/flatcore
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-SQL-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/flatCore/flatCore-CMSProduct, Third Party Advisory
- https://sec-consult.com/vulnerability-lab/Third Party Advisory
- http://packetstormsecurity.com/files/160936/flatCore-CMS-XSS-File-Disclosure-SQL-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/flatCore/flatCore-CMSProduct, Third Party Advisory
- https://sec-consult.com/vulnerability-lab/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.